1 /* 2 * Copyright 2010 Freescale Semiconductor, Inc. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <config.h> 8 #include <common.h> 9 #include <asm/io.h> 10 #include <asm/immap_85xx.h> 11 #include <asm/fsl_serdes.h> 12 13 #define SRDS1_MAX_LANES 8 14 15 static u32 serdes1_prtcl_map; 16 17 static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = { 18 [0x3] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1}, 19 [0x4] = {PCIE1, PCIE1, PCIE1, PCIE1, SRIO1, SRIO1, SRIO1, SRIO1}, 20 [0x5] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1}, 21 [0x6] = {NONE, NONE, NONE, NONE, SRIO1, SRIO1, SRIO1, SRIO1}, 22 [0x7] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1}, 23 }; 24 25 int is_serdes_configured(enum srds_prtcl prtcl) 26 { 27 if (!(serdes1_prtcl_map & (1 << NONE))) 28 fsl_serdes_init(); 29 30 return (1 << prtcl) & serdes1_prtcl_map; 31 } 32 33 void fsl_serdes_init(void) 34 { 35 ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); 36 u32 pordevsr = in_be32(&gur->pordevsr); 37 u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 38 MPC85xx_PORDEVSR_IO_SEL_SHIFT; 39 int lane; 40 41 if (serdes1_prtcl_map & (1 << NONE)) 42 return; 43 44 debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg); 45 46 if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) { 47 printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg); 48 return; 49 } 50 51 for (lane = 0; lane < SRDS1_MAX_LANES; lane++) { 52 enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane]; 53 serdes1_prtcl_map |= (1 << lane_prtcl); 54 } 55 56 /* Set the first bit to indicate serdes has been initialized */ 57 serdes1_prtcl_map |= (1 << NONE); 58 } 59